Regarding the physiographic sub-divisions and alluvial relief characteristics of the Northern Plains of India, which of the following statements are correct?
- The Bhabar tract is a narrow belt of pebble deposits running parallel to the Shiwalik foothills where river streams disappear due to high porosity.Answer
- The Terai zone lies south of the Bhabar belt, where underground streams re-emerge to create a marshy and ill-drained forested tract.Answer
- CBhangar represents the newer, low-lying alluvium deposited continuously by annual river floods along the active river channels.
- DKhadar consists primarily of older alluvial terraces containing calcareous concretions known locally as Kankar.
Answer
The correct statements are that the Bhabar tract is a narrow belt of pebble deposits along the Shiwalik foothills where streams disappear, and the Terai zone lies south of the Bhabar belt where re-emerging streams form a marshy, ill-drained tract.
The Bhabar and Terai descriptions accurately reflect the North-to-South physiographic zonation at the base of the Shiwalik range. Streams lose surface expression in the pebble-rich Bhabar and re-emerge to create the marshy Terai tract.
Step-by-Step Solution
Key Concept
Physiographic Zoning of the Northern Plains of India (Bhabar, Terai, Bhangar, Khadar)